1. Free from danger or attack: a secure fortress.
2. Free from risk of loss; safe: Her papers were secure in the vault.
3. Free from the risk of being intercepted or listened to by unauthorized persons: Only one telephone line in the embassy was secure.
4. Free from fear, anxiety, or doubt: felt secure in his old job.
a. Not likely to fail or give way; stable: a secure stepladder.
b. Firmly fastened: a secure lock.
6. Reliable; dependable: secure investments.
7. Assured; certain: With three goals in the first period they had a secure victory, but somehow they lost.
8. Archaic Careless or overconfident.
1. To guard from danger or risk of loss: The troops secured the area before the civilians were allowed to return.
3. To make certain; ensure: The speaker could not secure the goodwill of the audience.
a. To guarantee payment of (a loan, for example).
b. To guarantee payment to (a creditor).
5. To get possession of; acquire: secured a job.
6. To capture or confine: They secured the suspect in the squad car.
7. To bring about; effect: secured release of the hostages.
8. To protect or ensure the privacy or secrecy of (a telephone line, for example).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. free from danger, damage, etc
2. free from fear, care, etc
3. in safe custody
4. not likely to fail, become loose, etc
5. able to be relied on; certain: a secure investment.
6. (Nautical Terms) nautical stowed away or made inoperative
7. archaic careless or overconfident
8. (tr) to obtain or get possession of: I will secure some good seats.
9. (when: intr, often foll by against) to make or become free from danger, fear, etc
10. (tr) to make fast or firm; fasten
11. (when: intr, often foll by against) to make or become certain; guarantee: this plan will secure your happiness.
12. (Law) (tr) to assure (a creditor) of payment, as by giving security
13. (Military) (tr) to make (a military position) safe from attack
14. (Nautical Terms) nautical to make (a vessel or its contents) safe or ready by battening down hatches, stowing gear, etc
15. (Nautical Terms) (tr) nautical to stow or make inoperative: to secure the radio.
[C16: from Latin sēcūrus free from care, from sē- without + cūra care]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
adj. -cur•er, -cur•est, adj.
1. free from danger or harm; safe.
2. not liable to fail, yield, etc., as a support or fastening; firm.
3. affording safety, as a place.
4. kept in safe custody.
5. free from care or anxiety.
6. firmly established, as a reputation.
7. certain; assured: secure in his religious belief.
8. safe from penetration or interception by unauthorized persons: secure radio communications.
9. Archaic. overconfident.
10. to get hold of; obtain.
11. to free from danger or harm; make safe.
12. to make certain of; ensure: The novel secured his reputation.
13. to make fast: to secure a rope.
a. to assure payment of (a debt) by pledging property.
b. to assure (a creditor) of payment by a pledge.
15. to lock or fasten against intruders.
16. to capture (a person or animal).
17. to tie up the arms or hands of; pinion.
18. to guarantee the privacy or secrecy of: to secure diplomatic phone conversations.
19. to be or become safe; have security.
a. to cover openings and make movable objects fast.
b. to be excused from duty: All hands secure from general quarters.
Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
In an operational context, to gain possession of a position or terrain feature, with or without force, and to make such disposition as will prevent, as far as possible, its destruction or loss by enemy action. See also denial measure.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
Safe /seɪf/ as an adjective has two main meanings.
If someone is safe, they are not in danger or cannot be harmed.
We’re safe now. They’ve gone.
Thank goodness the children are safe.
When safe is used to describe people, it is never used in front of a noun. Don’t say, for example, ‘the safe children‘.
You can say that you are safe from something or someone to mean that you cannot be harmed by them.
They want to keep their families safe from crime.
She realised with relief that she was safe from him now.
You can also say that something is safe to mean that it is not dangerous or risky.
Is the water safe to drink?
You should always keep your passport in a safe place.
Something that is secure is protected so that nobody can get into it, steal it, or commit a crime involving it.
The hotel has 24-hour secure parking.
A secure password should contain a mixture of numbers, symbols, and letters.
You can also use secure to talk about a feeling of confidence that something is likely to continue or succeed.
To enjoy life you have to be financially secure.
The new job offered him a more secure future.
Collins COBUILD English Usage © HarperCollins Publishers 1992, 2004, 2011, 2012